This shotgun is different from all the other Klebe Shotguns pictured on this Web Site in that the latch on the right side of the reciever is a radiused latch where all the others have been rectangular.

The only thing I can figure is this is a change that was made close to the end of his career as a Gun Smith.

Congradulations Arizona, your shotgun may be a 1 of a kind!
Although each shotgun is handcrafted one of a kind.